213119991892 has 24 divisors (see below), whose sum is σ = 389491990272. Its totient is φ = 101844098400.

The previous prime is 213119991859. The next prime is 213119991893. The reversal of 213119991892 is 298199911312.

It is a happy number.

It is a super-2 number, since 2×213119991892² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213119991893) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 827659 + ... + 1054162.

It is an arithmetic number, because the mean of its divisors is an integer number (16228832928).

Almost surely, 2^213119991892 is an apocalyptic number.

It is an amenable number.

213119991892 is a deficient number, since it is larger than the sum of its proper divisors (176371998380).

213119991892 is a wasteful number, since it uses less digits than its factorization.

213119991892 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1883079 (or 1883077 counting only the distinct ones).

The product of its digits is 629856, while the sum is 55.

The spelling of 213119991892 in words is "two hundred thirteen billion, one hundred nineteen million, nine hundred ninety-one thousand, eight hundred ninety-two".